1. Download the workspace.zip file and unzip the files to the $HOME/.vim
or the $HOME/vimfiles or the $VIM/vimfiles directory. This should
unzip the following two files (the directory structure should be
preserved):

Refer to the 'add-plugin', 'add-global-plugin' and 'runtimepath'
Vim help pages for more details about installing Vim plugins.
2. Change to the $HOME/.vim/doc or $HOME/vimfiles/doc or
$VIM/vimfiles/doc directory, start Vim and run the ":helptags ."
command to process the workspace help file.
3. If you are running a terminal/console version of Vim and the terminal
doesn't support changing the window width then set the
'Ws_Inc_Winwidth' variable to 0 in the .vimrc file.
5. Restart Vim.
6. You can now use the ":WsOpen <filename>" command to open a
workspace. You can use the ":help workspace" command to get
more information about using the workspace plugin.